CA2514070A1 - Device and method for thermogravimetrically testing the behavior of a solid material - Google Patents
Device and method for thermogravimetrically testing the behavior of a solid material Download PDFInfo
- Publication number
- CA2514070A1 CA2514070A1 CA002514070A CA2514070A CA2514070A1 CA 2514070 A1 CA2514070 A1 CA 2514070A1 CA 002514070 A CA002514070 A CA 002514070A CA 2514070 A CA2514070 A CA 2514070A CA 2514070 A1 CA2514070 A1 CA 2514070A1
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- samples
- oven
- temperature
- heating
- sample
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Abstract
L'invention concerne un procédé de test, par thermogravimétrie, du comportement d'un matériau solide en présence d'une atmosphère gazeuse contrôlée, caractérisé en ce que l'on place une pluralité d'échantillons (10) en présence de ladite atmosphère gazeuse au sein d'un même four (4) à
atmosphère contrôlée, on associe chaque échantillon à une balance (38) qui lui est propre, on soumet les échantillons (10) à des cycles thermiques successifs prédéterminés comprenant chacun une étape de chauffage, durant laquelle on chauffe directement les échantillons (par rayonnement ou induction), et une étape de refroidissement, on mesure et on enregistre le poids de chaque échantillon de façon indépendante, en continu au moins durant une période prédéterminée -telle qu'un palier à haute température- au cours de l'étape de chauffage de chaque cycle thermique. L'invention concerne également un dispositif pour la mise en oeuvre de ce procédé. The invention relates to a method for testing, by thermogravimetry, the behavior of a solid material in the presence of a gaseous atmosphere controlled, characterized in that a plurality of samples (10) are placed in the presence of said gaseous atmosphere within the same oven (4) at controlled atmosphere, each sample is associated with a balance (38) which is clean, the samples (10) are subjected to successive thermal cycles predetermined each comprising a heating step, during which directly heat the samples (by radiation or induction), and a cooling step, we measure and record the weight of each sample independently, continuously at least for a period predetermined - such as a high temperature bearing - during the heating of each thermal cycle. The invention also relates to a device for implementing this method.
Claims (34)
- on place une pluralité d'échantillons (10) en présence de ladite atmosphère gazeuse au sein d'un même four (4) à atmosphère contrôlée, - on associe chaque échantillon à une balance (38), qui lui est propre, d'erreur inférieure à 100 µg, - on soumet les échantillons (10) à des cycles thermiques successifs prédéterminés comprenant chacun une étape de chauffage, durant laquelle on chauffe directement les échantillons, et une étape de refroidissement, durant laquelle on ne chauffe pas les échantillons, - on mesure et on enregistre le poids de chaque échantillon de façon indépendante, en continu au moins durant un palier à haute température de l'étape de chauffage de chaque cycle thermique, 1 / Test method by thermogravimetry of behavior a solid material in the presence of a controlled gas atmosphere, characterized in that than:
- a plurality of samples (10) are placed in the presence of said gaseous atmosphere within the same oven (4) with controlled atmosphere, - each sample is associated with a balance (38), which is clean, error less than 100 µg, - the samples (10) are subjected to thermal cycles predetermined successive stages each comprising a heating stage, during which one directly heat the samples, and a cooling step, during which one do not heat the samples, - we measure and record the weight of each sample of independently, continuously at least during a high temperature stop of the stage heating each thermal cycle,
haute température de l'étape de chauffage. 2 / A method according to claim 1, characterized in that, a each thermal cycle, the samples (10) of lots are heated as their temperature is between 400 ° C and 1800 ° C at least during a plateau at high temperature the heating stage.
en ce que, à chaque cycle thermique, on chauffe les échantillons (10) de sorte que leur température soit supérieure à 1100°C au moins durant un palier à haute température de l'étape de chauffage. 3 / Method according to one of claims 1 to 2, characterized in that, at each thermal cycle, the samples (10) are heated so that that their temperature is higher than 1100 ° C at least during a high bearing temperature of the heating stage.
en ce que, à chaque cycle thermique, ont chauffe les échantillons (10) a une vitesse de chauffage supérieure à 300°C/min. 4 / Method according to one of claims 1 to 3, characterized in that, at each thermal cycle, the samples (10) are heated to a speed of heating above 300 ° C / min.
en ce que, à chaque cycle thermique, on refroidit les échantillons (10) à une vitesse de refroidissement supérieure à 100°C/min. 5 / Method according to one of claims 1 to 4, characterized in that, at each thermal cycle, the samples (10) are cooled to a speed of cooling above 100 ° C / min.
en ce que l'on soumet les échantillons (10) à des cycles thermiques comprenant chacun une étape de chauffage constituée d'une phase de montée en température d'une durée inférieure à 5 minutes et d'un palier à haute température d'une durée de l'ordre de 60 minutes, et une étape de refroidissement constituée d'une phase de descente en température d'une durée inférieure à 10 minutes et d'un palier à basse température d'une durée comprise entre 0 et 15 minutes. 6 / Method according to one of claims 1 to 5, characterized in that the samples (10) are subjected to thermal cycles comprising each a heating step consisting of a temperature rise phase of a duration less than 5 minutes and a high temperature plateau lasting the order of 60 minutes, and a cooling step consisting of a descent phase in temperature of less than 10 minutes and a low level temperature of a duration between 0 and 15 minutes.
en ce que l'on soumet les échantillons (10) à un nombre de cycles thermiques successifs compris entre 10 et 3000. 7 / Method according to one of claims 1 to 6, characterized in that the samples (10) are subjected to a number of thermal cycles successive between 10 and 3000.
- un four (4) à atmosphère gazeuse contrôlée, - des moyens de pesée (6) du matériau placé dans le four, présentant une erreur inférieure à 100 µg, - des moyens de confinement (7, 8, 34) adaptés pour limiter les éventuelles perturbations subies par les moyens de pesée du fait de l'environnement extérieur au dispositif et/ou de l'atmosphère gazeuse contrôlée, caractérisé en ce que:
- le four (4) est adapté pour recevoir un nombre N strictement supérieur à 1 d'échantillons (10) du matériau, - le four comprend des moyens (11) de chauffage direct des échantillons, aptes à soumettre les échantillons à des cycles thermiques successifs prédéterminés comprenant chacun une étape de chauffage, durant laquelle les échantillons sont chauffés, et une étape de refroidissement, durant laquelle les échantillons ne sont pas chauffés, les moyens de chauffage étant aptes à
imposer des paliers à haute température durant les étapes de chauffages, - les moyens de pesée comprennent N balances (38) indépendantes d'erreur inférieure à 100 µg, chaque balance étant apte à
mesurer et enregistrer le poids d'un échantillon en continu au moins durant un palier à
haute température de l'étape de chauffage de chaque cycle thermique, - le dispositif présente une architecture globale en étoile, dans laquelle au moins tes balances sont disposées en étoile, laquelle architecture en étoile est adaptée pour recevoir les échantillons à proximité les uns des autres en une partie centrale du four. 8 / Test device, by thermogravimetry, of behavior of a solid material in the presence of a gaseous atmosphere controlled comprising:
- an oven (4) with a controlled gas atmosphere, - weighing means (6) of the material placed in the oven, with an error of less than 100 µg, - containment means (7, 8, 34) adapted to limit the possible disturbances to the weighing means due to the environment outside the device and / or the controlled gas atmosphere, characterized in that:
- the oven (4) is adapted to receive a number N strictly greater than 1 of samples (10) of the material, - The oven comprises means (11) for direct heating of samples, suitable for subjecting samples to thermal cycles successive predetermined each comprising a heating step, during which the samples are heated, and a cooling step, during which the samples are not heated, the heating means being suitable for impose high temperature bearings during the heating stages, - the weighing means comprise N scales (38) independent of error less than 100 µg, each balance being able to measure and record the weight of a sample continuously at least during one stop at high temperature of the heating stage of each thermal cycle, - the device has a global star architecture, in which at least your scales are arranged in a star, which architecture star is suitable for receiving samples close to each other in a part central oven.
chauffer les échantillons à une vitesse de chauffage supérieure à 300°C/min. 10 / Device according to one of claims 8 to 9, characterized in that the direct heating means (11) are suitable for heat them samples at a heating rate greater than 300 ° C / min.
refroidir les échantillons à une vitesse de refroidissement supérieure à 100°C/min. 11 / Device according to one of claims 8 to 10, characterized in that the direct heating means (11) are suitable for cool them samples at a cooling rate greater than 100 ° C / min.
réaliser des cycles thermiques comprenant chacun une étape de chauffage constituée d'une phase de montée en température d'une durée inférieure à 5 minutes et d'un palier à
haute température d'une durée de l'ordre de b0 minutes, et une étape de refroidissement constituée d'une phase de descente en température d'une durée inférieure à 10 minutes et d'un palier à basse température d'une durée comprise entre 0 et 15 minutes. 12 / Device according to one of claims 8 to 11, characterized in that the direct heating means (11) are suitable for perform thermal cycles each comprising a heating step consisting of a phase of temperature rise lasting less than 5 minutes and from one level to high temperature of a duration of the order of b0 minutes, and a step of cooling consisting of a temperature descent phase lasting less than 10 minutes and a low temperature bearing lasting between 0 and 15 minutes.
réaliser plus de 3000 cycles thermiques successifs. 13 / Device according to one of claims 8 to 12, characterized in that the direct heating means (11) are suitable for achieve more than 3000 successive thermal cycles.
deux canaux pour permettre le passage de fils thermocouples (48). 22 / Device according to one of claims 20 or 21, characterized in that the suspension rods (41) are of the capillary type with two channels to allow the passage of thermocouple wires (48).
immédiate d'un échantillon (10) et dotés de moyens (58) de mesure de la température à
l'intérieur du témoin. 23 / Device according to one of claims 8 to 21, characterized in that it comprises means (60) for supporting at least one piece of material (57), called witness, adapted to keep the witness nearby immediate of a sample (10) and provided with means (58) for measuring the temperature at inside the witness.
en dessous de l'extrémité inférieure des tiges de suspension (41) en vue de permettre l'accrochage et/ou le retrait des échantillons, et une position haute de test, dans laquelle l'extrémité
inférieure des tiges de suspension (41) s'étend à l'intérieur de la chambre (9) du four. 26 / Device according to one of claims 8 to 25, characterized in that the oven (4) is slidably mounted in a direction sensibly vertical between a low preparation position, in which it is located under the lower end of the suspension rods (41) to allow hooking and / or sample removal, and a high test position, in which end lower of the suspension rods (41) extends inside the chamber (9) from the oven.
en ce que chaque balance comprend un contrepoids permanent (56) fixé à une extrémité
longitudinale (44) du fléau, dite extrémité de calibrage, de façon à être suspendu à
l'intérieur de la cloche de protection (8). 32 / Device according to claims 20 and 27, characterized in that each balance comprises a permanent counterweight (56) fixed to a end longitudinal (44) of the beam, said calibration end, so as to be hanging on inside the protective cover (8).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR03/00742 | 2003-01-23 | ||
FR0300742A FR2850460B1 (en) | 2003-01-23 | 2003-01-23 | DEVICE AND METHOD FOR THERMOGRAVIMETRY TESTING |
PCT/FR2004/000090 WO2004068102A2 (en) | 2003-01-23 | 2004-01-16 | Device and method for thermogravimetrically testing the behavior of a solid material |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2514070A1 true CA2514070A1 (en) | 2004-08-12 |
CA2514070C CA2514070C (en) | 2012-01-03 |
Family
ID=32669171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2514070A Expired - Fee Related CA2514070C (en) | 2003-01-23 | 2004-01-16 | Device and method for thermogravimetrically testing the behavior of a solid material |
Country Status (5)
Country | Link |
---|---|
US (1) | US7273316B2 (en) |
EP (1) | EP1585976A2 (en) |
CA (1) | CA2514070C (en) |
FR (1) | FR2850460B1 (en) |
WO (1) | WO2004068102A2 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US7416328B2 (en) * | 2004-12-28 | 2008-08-26 | Waters Investments Limited | System and method for a thermogravimetric analyzer having improved dynamic weight baseline |
US8408051B2 (en) * | 2010-09-01 | 2013-04-02 | Frito-Lay North America, Inc. | Method for decreasing variability in a moisture analyzer |
CN104048894B (en) * | 2013-03-15 | 2017-05-31 | 宝山钢铁股份有限公司 | The detection method and device of graphite roller set resistance high temperature dry and wet ambient oxidation ability |
CN104181067A (en) * | 2013-05-22 | 2014-12-03 | 宝山钢铁股份有限公司 | Device for detecting high temperature oxidation resistance of graphite roller sleeve in different atmospheres |
US9389194B2 (en) * | 2013-09-13 | 2016-07-12 | Netzsch-Geraetebau Gmbh | System and method for analysis in modulated thermogravimetry |
WO2015097715A2 (en) * | 2013-11-19 | 2015-07-02 | Indian Institute Of Technology | An apparatus and process to analyze and characterize spalling due to theririo-mechanical failure of coal during underground coal gasification |
EP2942612A1 (en) * | 2014-05-06 | 2015-11-11 | Mettler-Toledo AG | Temperature Modulated Thermogravimetric Analysis |
CN104215551A (en) * | 2014-09-24 | 2014-12-17 | 南方电网科学研究院有限责任公司 | Method for testing natural pollution characteristics of high-voltage external-insulation device |
FR3057956A1 (en) * | 2016-10-24 | 2018-04-27 | Valeo Systemes De Controle Moteur | METHOD FOR PERFORMING A THERMAL SHOCK TEST |
EP3545288A1 (en) * | 2016-11-22 | 2019-10-02 | TA Instruments-Waters LLC | Direct thermal injection thermal analysis |
CN107389212A (en) * | 2017-07-31 | 2017-11-24 | 中国科学技术大学 | A kind of solid material burning behavior measurement apparatus |
CN109470590B (en) * | 2017-09-07 | 2024-03-12 | 中冶长天国际工程有限责任公司 | Online moisture detection device and method for materials |
CN110261238B (en) | 2019-06-20 | 2024-04-05 | 浙江大学 | Material performance testing system under supergravity environment fixed type multi-field coupling effect |
CN112525763A (en) * | 2019-09-19 | 2021-03-19 | 国网江苏省电力有限公司南京供电分公司 | Method for detecting residual quantity of crosslinking by-products |
Family Cites Families (13)
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HU175262B (en) * | 1977-04-14 | 1980-06-28 | Mta Mueszaki Fiz Kutato Inteze | Process and equipment for the thermic analysis of substances |
US4606649A (en) * | 1985-01-14 | 1986-08-19 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Energy, Mines And Resources | Assembly for concurrent thermogravimetry and differential thermal analysis |
US4874948A (en) * | 1986-12-29 | 1989-10-17 | Canadian Patents And Development Limited | Method and apparatus for evaluating the degree of cure in polymeric composites |
GB8725599D0 (en) * | 1987-11-02 | 1987-12-09 | British Aerospace | Heat source |
JP3016095B2 (en) * | 1990-11-29 | 2000-03-06 | セイコーインスツルメンツ株式会社 | Thermogravimeter |
US5165792A (en) * | 1991-01-08 | 1992-11-24 | Ta Instruments, Inc. | Method and apparatus for high resolution analysis |
JP3140099B2 (en) * | 1991-08-26 | 2001-03-05 | セイコーインスツルメンツ株式会社 | Thermogravimeter |
GB9523812D0 (en) * | 1995-11-21 | 1996-01-24 | Sun Electric Uk Ltd | Method and apparatus for analysis of particulate content of gases |
US6113261A (en) * | 1997-06-27 | 2000-09-05 | Ta Instruments, Inc. | Method and apparatus of modulated-temperature thermogravimetry |
US6602714B1 (en) * | 1999-11-09 | 2003-08-05 | Sri International | Viscosity and mass sensor for the high-throughput synthesis, screening and characterization of combinatorial libraries |
US6903281B2 (en) * | 2001-11-21 | 2005-06-07 | Perkinelmer Instruments Llc | Method and apparatus for reducing error when measuring minute quantities of weight |
WO2004081477A2 (en) * | 2003-03-06 | 2004-09-23 | Leco Corporation | Analytical furnace with predictive temperature control |
US6840668B1 (en) * | 2003-07-25 | 2005-01-11 | Waters Investment Limited | Thermogravimetrical analyzer autosampler sealed sample pan |
-
2003
- 2003-01-23 FR FR0300742A patent/FR2850460B1/en not_active Expired - Fee Related
-
2004
- 2004-01-16 WO PCT/FR2004/000090 patent/WO2004068102A2/en active Application Filing
- 2004-01-16 US US10/543,149 patent/US7273316B2/en not_active Expired - Fee Related
- 2004-01-16 EP EP04702719A patent/EP1585976A2/en not_active Withdrawn
- 2004-01-16 CA CA2514070A patent/CA2514070C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2004068102A2 (en) | 2004-08-12 |
EP1585976A2 (en) | 2005-10-19 |
FR2850460A1 (en) | 2004-07-30 |
FR2850460B1 (en) | 2005-12-30 |
US7273316B2 (en) | 2007-09-25 |
CA2514070C (en) | 2012-01-03 |
WO2004068102A3 (en) | 2004-09-10 |
US20060120431A1 (en) | 2006-06-08 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20170116 |
|
MKLA | Lapsed |
Effective date: 20170116 |